Tabs vs spaces not always respected

[jacobweber]

Using Twig 2.0.0 with Eclipse 4.6.0 on Mac OS 10.11.6.

1. In the settings for PHP, select tabs instead of spaces for indentation.
2. Create a new Twig file.
3. Press tab. A tab character is inserted, as expected.
4. Type a Twig tag after the tab character, e.g. {{ foo }}
5. Move the cursor to between the tab character and the Twig tag.
6. Press tab again. This time four spaces are inserted.

[waveywhite]

The same problem occurs when indenting a block of code: the editor will always use spaces.